Longines Admiral L3.666.4

A Longines gent's steel cased Admiral chronograph automatic wristwatch, ref. L3.666.4, No.34502130, having a signed black dial with twin subsidiary dials, date aperture at 6 o'clock, tachymeter outer track, screw-down back cover for a cal.L705.2 automatic movement, inside back cover numbered 915 705, case dia.43mm, on alligator skin bracelet with steel hinged deployment clasp, no box or papers